Open AccessAnti‐multipath interference method of semi‐active seek
Author(s) -
Tian Gui Long,
Tong Chuang Ming,
Liu Hao,
Long Zheng Guo,
Wang Jiang Jun
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0482
Subject(s) - multipath propagation , multipath interference , interference (communication) , antenna (radio) , computer science , moment (physics) , electromagnetic interference , scattering , electronic engineering , acoustics , physics , optics , telecommunications , engineering , channel (broadcasting) , classical mechanics
Multipath interference is the main factor which has influence in super‐low‐altitude detection. Aiming at solving the problem of detection for super‐low‐altitude target, anti‐multipath methods under concrete environment are studied here. First, antenna radiation pattern of seeker is introduced to modify traditional four‐path method. Then, the hybrid method combining physical optics (PO) and method of equivalent currents (MEC) is used to calculate the scattering electric field of target. Compared to the method of moment (MoM), the PO + MEC hybrid methods are of high accuracy. Finally, the multipath interference scattering from interaction between the target and the environment under the condition is studied and analysed in detain. The simulation results are useful in military application.